The article analyzes the existing procedure for entering information on the boundaries of zones with special conditions for the use of territories in the Unified State Register of Real Estate using the example of flooding zones. The basic regulatory documents governing the procedure and procedure for establishing flood zones are identified, in which gaps are identified in the requirements for the content of the work to determine the boundaries of such zones and assess their accuracy. In this connection, it is proposed to use the algorithm developed by the authors to determine the boundaries of the zones of underflooding development based on the analysis of the hydrographic network and digital terrain model using GIS technologies. This methodology is aimed at an operational assessment of the conditions of built-up and built-up territories, which allows to reduce the financial costs of conducting expensive engineering surveys, the need of which remains to clarify the results of computer mapping in the most critical areas. The norms of accuracy of determining the boundaries of flood zones are proposed, which will correspond to the accuracy of determining the boundaries of the lands of the water fund. In order to test the developed algorithm, we chose the territory of the Ob-Tomsk interfluve, for which zoning was carried out according to the depth of groundwater and the territories of moderate and severe flooding were identified for the purpose of further more detailed study.

Kuzevanov Konstantin Ivanovich, Candidate of Geologo-Mineralogical Sciences, Associate Professor, Division for Geology, School of Earth Sciences & Engineering, National Research Tomsk Polytechnic University. 2/5, Lenin Avenue, Tomsk, Tomsk region, 634028, Russia. E-mail: kki@tpu.ru.

Pasechnik Elena Yuryevna, Candidate of Geologo-Mineralogical Sciences, associate Professor, Division for Geology, School of Earth Sciences & Engineering, National Research Tomsk Polytechnic University. 2/5, Lenin Avenue, Tomsk, Tomsk region, 634028, Russia. E-mail: paseyu@yandex.ru.

Chilinger Liliya Narimanovna, Senior Lecturer, Division for Geology, School of Earth Sciences & Engineering, National Research Tomsk Polytechnic University. 2/5, Lenin Avenue, Tomsk, Tomsk region, 634028, Russia. E-mail: lilichilinger@gmail.com.

1. Alekseeva O.I., Demchenko R.Ya., Kurchatova A.N. Monitoring of the frozen foundations of buildings in Yakutsk // Earth’s Cryosphere. 1999. V. 3, No. 4. P. 9-14.
2. Vil’dyaev V.M. On flood zones and flooding in flood hazardous territories // Astrakhan Bulletin of Environmental Education. 2015. No. 2 (32). P. 174-177.
3. Kasprova Yu.A. Flooding and flooding zones: the basis of the legal regime // Current Trends in the Development of Environmental, Land and Agricultural Law : Materials of the International Scientific and Practical Conference, Moscow, Russian, 2018. P. 174-179.
4. Lukin A.A. Morphostructural-hydrogeological analysis. Hydrogeological forecasting and morphostructural-hydrogeological analysis. Russian : Tomsk : Publishing House of Tomsk Polytechnic University, 1995. 48 р.
5. Lyubimova A.V., Dikovskiy I.A. GIS-analysis and classification of natural and technogenic hazards in Russian Federation. Geoinformatika. 2011. No. 2. P. 61-68.
6. Kuzevanov K.I, Dutova E.M., Pokrovskij D.S. The use of geographic information technologies in the study of processes of technogenic flooding of urbanized territories (for example, the city of Tomsk) // Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering. 2004. V. 307, No. 7. P. 30-35.
7. Popov V.K., Kozina M.V. Greening the cadastral valuation of land to study the development of urban areas // Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering. 2015. V. 326, No. 11. P. 98-105.
8. Popov V.K., Pasechnik E.Yu., CHilinger L.N., Avrunev E.I., Red’kina V.I. The Monitoring of economic development within the bounds of underground water intake protective sanitary zone territory (by the example of Tomsk underground water intake line) // Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering. 2020. V. 331, No. 3. P. 7-21.
9. SHalikovskij A.V., Sokolov A.V. Problems of establishing the boundaries of flood zones and flooding // Water resources and water use : Sat Materials of the II International Scientific and Practical Conference, Chita : Transbaikal State University, 2018. P. 13-17.
10. Shepelev V.V., Popenko F.E. About the organization of engineering protection of the territory of Yakutsk against flooding and flood // Science and technology in Yakutia. 2019. No. 3. P. 31.
11. Chillinger L.N. Methodological approach to establishing the boundaries of zones with a special water regime: justification and technological scheme of implementation // Bulletin of SSUGiT. 2019. V. 3 (24). P. 222-237.
12. Badenko V., Kurtener D., Yakushev V.P., Torbert A., Badenko G. Evaluation of current state of agricultural land using problem-oriented fuzzy indicators in GIS environment // Lecture Notes in Computer Science. 2016. V. 9788. P. 57-69.
13. Klikunova A.Yu., Khoperskov A.V., Agafonnikova E.O., Kuz’mich A.S., Dyakonova T.A. Creation of cadastral maps of flooding based on numerical modeling // Journal of Computational and Engineering Mathematics. 2019. V. 6, No. 2. P. 3-17.
14. Oriola E., Chibuike C. Flood risk analysis of EDU local government area (Kwara state, Nigeria) // Geography, Environment, Sustainability. 2016. V. 9, No. 3. P. 106-116.
15. Pasechnik E.Yu., Chilinger L.N. Development of the methods of environmental and sanitary-hygienic assessment of urbanized lands (on the example of the Ob-Tom interfluve) IOP Conference Series: Earth and Environmental Science. 2019. V. 350. Conference 1 [Electronic resource]. https://doi.org/10.1088/1755-1315/350/1/012041.
16. Rozpondek R., Wancisiewicz K., Kacprzak M. GIS in the studies of soil and water environment // Journal of Ecological Engineering. 2016. V. 17, No. 3. P. 134-142.
17. Shalikovskiy A., Kurganovich K. Flood hazard and risk assessment in Russia // Natural Hazards. 2017. V. 88. No. S1. P. 133-147.
18. GLONASS. Intersectoral journal of navigation technologies [Electronic resource]. http://vestnik-glonass.ru/news/tech/the_field_of_application_of_gis_/.
19. Russian industrial company. Complex automation of design and technological works. [Electronic resource]. URL: https://cad.ru/ru/service/solutions/geo.php (date of access: 5.08.2020).